$155+ Cheap flights from Colorado Springs to Boise (COS - BOI)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/21. Fares are subject to change and may not be available on all flights or dates of travel.
COS — BOI
Oct 8 — Oct 151
Round-trip
1 adult, Economy
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Find cheap flights from Colorado Springs to Boise with Cheapflights
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from Colorado Springs to BoiseExplore the most affordable flight options available from Colorado Springs to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 8, 2026.
Explore the most affordable flight options available from Colorado Springs to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 8, 2026.
This Southwest deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/58:55 pm -
1 stop4h 50m
Mon 10/127:45 pm -
1 stop4h 30m
Deal found 9/7![Southwest logo]()
$309
This Southwest deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/55:00 am -
1 stop4h 50m
Mon 11/911:15 am -
2 stops7h 50m
Deal found 9/7![Southwest logo]()
$314
This Delta deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/66:07 pm -
1 stop5h 52m
Sun 10/116:49 pm -
1 stop3h 33m
Deal found 9/3![Delta logo]()
$338
This Southwest deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/75:45 pm -
1 stop5h 30m
Wed 10/144:40 pm -
1 stop5h 05m
Deal found 9/5![Southwest logo]()
$347
This Southwest deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/175:40 am -
2 stops7h 15m
Tue 10/2012:55 pm -
2 stops8h 50m
Deal found 9/6![Southwest logo]()
$357
This United Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/45:30 am -
1 stop4h 04m
Mon 10/55:30 pm -
1 stop3h 54m
Deal found 9/5![United Airlines logo]()
$377
This Delta deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/186:05 pm -
1 stop6h 21m
Sat 1/91:15 pm -
1 stop3h 59m
Deal found 9/7![Delta logo]()
$387
Best flights from Colorado Springs to BoiseDiscover carefully curated flight deals from Colorado Springs to Boise that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 8, 2026.
Discover carefully curated flight deals from Colorado Springs to Boise that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 8, 2026.
This Southwest deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/175:40 am -
1 stop4h 50m
Tue 10/206:35 am -
1 stop5h 25m
Deal found 9/6![Southwest logo]()
$347
This United Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/45:30 am -
1 stop4h 04m
Mon 10/55:30 pm -
1 stop3h 54m
Deal found 9/5![United Airlines logo]()
$377
This Southwest deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/55:00 pm -
2 stops8h 05m
Mon 10/127:45 pm -
1 stop4h 30m
Deal found 9/7![Southwest logo]()
$359
This United Airlines deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/58:35 am -
1 stop4h 58m
Wed 12/92:48 pm -
1 stop6h 35m
Deal found 9/3![United Airlines logo]()
$389
This United Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/118:40 am -
1 stop5h 05m
Thu 11/195:00 am -
1 stop3h 43m
Deal found 9/5![United Airlines logo]()
$447
This Southwest deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/224:15 pm -
2 stops6h 15m
Sat 9/2612:55 pm -
2 stops7h 15m
Deal found 9/7![Southwest logo]()
$452
This Southwest deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/235:00 am -
1 stop4h 50m
Mon 11/306:10 pm -
1 stop5h 00m
Deal found 9/7![Southwest logo]()
$462
Last-minute flights from Colorado Springs to BoiseDiscover last-minute flight deals from Colorado Springs to Boise. Data last updated September 8, 2026 and is based on user searches.
Discover last-minute flight deals from Colorado Springs to Boise. Data last updated September 8, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/45:30 am -
1 stop4h 04m
Mon 10/55:30 pm -
1 stop3h 54m
Deal found 9/5![United Airlines logo]()
$377
This Southwest deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/46:10 am -
2 stops7h 40m
Mon 10/57:45 pm -
1 stop4h 30m
Deal found 9/5![Southwest logo]()
$423
This Southwest deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/58:55 pm -
1 stop4h 50m
Mon 10/127:45 pm -
1 stop4h 30m
Deal found 9/7![Southwest logo]()
$309
This Delta deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/66:07 pm -
1 stop5h 52m
Sun 10/116:49 pm -
1 stop3h 33m
Deal found 9/3![Delta logo]()
$338
This Southwest deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/67:45 am -
2 stops8h 15m
Sun 10/114:10 pm -
1 stop6h 25m
Deal found 9/3![Southwest logo]()
$389
This Southwest deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/75:45 pm -
1 stop5h 30m
Wed 10/144:40 pm -
1 stop5h 05m
Deal found 9/5![Southwest logo]()
$347
This Southwest deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/175:40 am -
2 stops7h 15m
Tue 10/2012:55 pm -
2 stops8h 50m
Deal found 9/6![Southwest logo]()
$357
This Southwest deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/238:10 pm -
1 stop4h 55m
Sun 10/255:55 pm -
2 stops6h 55m
Deal found 9/6![Southwest logo]()
$408
One-way flights from Colorado Springs to BoiseSearch for one-way flight options from Colorado Springs to Boise. Find affordable one-way fares based on user searches. Data last updated September 8, 2026.
Search for one-way flight options from Colorado Springs to Boise. Find affordable one-way fares based on user searches. Data last updated September 8, 2026.
This Southwest deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/214:10 pm -
1 stop6h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Southwest logo]()
$155
This Southwest deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/186:45 pm -
1 stop4h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Southwest logo]()
$221
This United Airlines deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2812:05 pm -
3 stops28h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![United Airlines logo]()
$405
Find flight deals from Colorado Springs to Boise
Discover tips and strategies to find the most affordable flight options for your journey from Colorado Springs (COS) to Boise (BOI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $309 (Southwest) |
One-way from | $155 (Southwest) |
Popular in | July |
Cheapest in | February |
Average price | $410 |
Cheapflights Fare Finder
Customize your flight search to find flights from Colorado Springs to Boise that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 8, 2026.
Use the filters below to find and compare flights from Colorado Springs to Boise that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Colorado SpringsBoise
COS Colorado Springs - BOI Boise Air Term. Gowen Fld
COSBOI
Colorado Springs
Wed 10/28
5:45 pm-11:15 pm
1 stop5h 30m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$155
Quickest round-trip
Colorado SpringsBoise
COS Colorado Springs - BOI Boise Air Term. Gowen Fld
COSBOI
Colorado Springs
Wed 2/10
6:00 am-9:39 am
1 stop3h 39m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$224
Colorado SpringsBoise
COS Colorado Springs - BOI Boise Air Term. Gowen Fld
COSBOI
Colorado Springs
Thu 2/11
6:35 pm-11:05 pm
1 stop4h 30m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$249
Colorado SpringsBoise
COS Colorado Springs - BOI Boise Air Term. Gowen Fld
COSBOI
Colorado Springs
Thu 2/18
6:00 am-9:43 am
1 stop3h 43m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$270
Colorado SpringsBoise
COS Colorado Springs - BOI Boise Air Term. Gowen Fld
COSBOI
Colorado Springs
Wed 9/16
6:55 am-1:40 pm
1 stop6h 45m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$291
Colorado SpringsBoise
COS Colorado Springs - BOI Boise Air Term. Gowen Fld
COSBOI
Colorado Springs
Sat 10/17
5:40 am-10:30 am
1 stop4h 50m
Boise Air Term. Gowen Fld
Tue 10/20
6:35 am-12:00 pm
1 stop5h 25m
$347
Colorado SpringsBoise
COS Colorado Springs - BOI Boise Air Term. Gowen Fld
COSBOI
Colorado Springs
Mon 10/5
5:00 pm-1:05 am
2 stops8h 05m
Boise Air Term. Gowen Fld
Mon 10/12
7:45 pm-12:15 am
1 stop4h 30m
$359
Colorado SpringsBoise
COS Colorado Springs - BOI Boise Air Term. Gowen Fld
COSBOI
Colorado Springs
Sun 10/4
5:30 am-9:34 am
1 stop4h 04m
Boise Air Term. Gowen Fld
Mon 10/5
5:30 pm-9:24 pm
1 stop3h 54m
$377
Colorado SpringsBoise
COS Colorado Springs - BOI Boise Air Term. Gowen Fld
COSBOI
Colorado Springs
Sat 12/5
8:35 am-1:33 pm
1 stop4h 58m
Boise Air Term. Gowen Fld
Wed 12/9
2:48 pm-9:23 pm
1 stop6h 35m
$389
Colorado SpringsBoise
COS Colorado Springs - BOI Boise Air Term. Gowen Fld
COSBOI
Colorado Springs
Wed 10/28
12:05 pm-4:42 pm
3 stops28h 37m
Boise Air Term. Gowen Fld
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$405
Showing 1-10 of 13 resultsSorted by cheapest first
Compare providers for flights from Colorado Springs to Boise
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Colorado Springs to Boise in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Colorado Springs-Boise flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Colorado Springs-Boise flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Colorado Springs-Boise flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Colorado Springs-Boise flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Colorado Springs-Boise flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Colorado Springs to Boise
Have a flexible travel schedule? Discover the best time to fly to Boise from Colorado Springs with our price prediction graph.
COS-BOI
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Colorado Springs to Boise
What is the cheapest month to book a flight from Colorado Springs to Boise?
Currently, February is the cheapest month in which you can book a flight from Colorado Springs to Boise (average of $346). Flying from Colorado Springs to Boise in July is currently the most expensive (average of $610). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Colorado Springs to Boise?
Airfare is below average for this route at the moment.
Colorado Springs to Boise flights typically cost between $316 and $422 in October.The cheapest round-trip price found within the last 5 days was $309 on Southwest (Oct 5-Oct 12).
Reviews of airlines servicing Boise
Get insights into the airlines that provide service to Boise. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Boise. Reviews last updated September 8, 2026.
Read through reviews of airlines operating flights from Colorado Springs to Boise, such as Southwest,Delta, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Crew
8.6
Boarding
8.1
Food
7.0
Overall
8.0
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Entertainment
7.5
Crew
8.6
Boarding
8.1
Food
7.0
Overall
8.0
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Entertainment
7.5
Crew
8.6
Boarding
8.1
Food
7.0
Overall
8.0
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Entertainment
7.5
Crew
8.6
Boarding
8.1
Food
7.0
Overall
8.0
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentCourtney,Sep 2026
DEN - STL
Related info for your journey
Find useful and relevant information for your journey from Colorado Springs to Boise. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Boise?
Book flights to Boise if you plan to visit one of these locationsOntario
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Colorado Springs and Boise flights
Browse other Colorado Springs and Boise flight options. Last updated on September 8, 2026.
Other flights from Colorado Springs
Browse through other flights departing from Colorado Springs. Flights are based on user searches made on Cheapflights and were last updated on September 8, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 3 airlines flying from Colorado Springs to Boise
Discover the top 3 airlines that operate flights from Colorado Springs to Boise. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$215 | Average$485 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$255 | Average$401 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$266 | Average$410 | FlexibilityNo cancel fee | On-time69% |